A group of niobium-tantalum oxide minerals, often brown to black and forming octahedral crystals, frequently radioactive. It's associated with grounding, manifestation, and Earth energies. (An important ore of Niobium).
Brown, Black, Yellow, Reddish-Brown, Greenish, often forms octahedral crystals
Pyrochlore is classified as a oxide mineral mineral which typically crystallizes in the isometric system. Its chemical formula is (Na,Ca)2Nb2O6(OH,F). Common crystal habits include typically octahedra, disseminated granular, massive.